Because I'm in a good mood and a change of behaviour the Boraras may well get a reprieve and remain in this tank now.
The count is (I think 18) remaining and all the 'Merah' seem to have been the weaklings only leaving the Maculatus. I say think because its hard to count things that move
No floaters/jumpers/filter sniffers today or yesterday and the fish seem to now be much calmer and do tend to stick in the same area (or half) of the tank as each other now.
I have no idea what made the change. Whether it is the smaller number, whether it is that they are now a single species.
Could be CO2. I used the solution supplied with the DC as my bromo blue but was registering green permanently so I redid the DC with API Ph reagent. This is because of the red gills. They are fine late on but not during the day so I assume the CO2 was pretty high and the DC wasn't telling me.
Was using 3bps through an Up inline atomizer and from reports on the web these work much better than others with most users reporting they have to turn the bubble rate down. Mine has been on 1bps for the last 2 days.
Also I have removed the circulation pump. The plantmass isn't that high so we'll see how it goes. Just running with the 5.6x turnover of the Eheim now.
Why am I in a good mood? Spent most of yesterday moving Cory eggs into a little net
Last 2 batches have been duds so hopefully this will be a better result.
Andy